Improvement in machines for shaping-the edges of boot and shoe heels



2 Shees--Sheet C. W. G LiDD EN.

Machinesvfor Shaping the Edges of Boot and She No.135,538. Heels' PatentedFeb4,1873.

2 Sheets-Sheet"2.

C. W. GLlDDEN.

`Machines for Shaping the Edges of'Beot ad Shoe Heels. L N0. 35,538. K Patented Feb* 4,1873.

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UNTED STATES PA'rnNr rrron.

CHARLES \V. GLIDDEN, OF LYNN, MASSACHUSETTS;

IMPROVEMENT IN MACHlNES FOR SHAPINGTHE EDGES OF BGOT AND SHOE HEELS.

Specilication forming partof Letters Patent N0. 135,538. (Intell February 4, 1873- ,l'o all whom 'it muy concern:

Be it known that I, CHARLES W. GLinDEN, of Lynn, in the county of Essex and State of Massachusetts, have invented an Improved Machine for Shaping the Edges of Heels of Boots and Shoes; and I do hereby declare that the following, taken in connection with the drawing which accompanies and forms a part of this specitcation, is a description of my invention suticient to enable those skilled in the art to practice it.

In the manufacture of boot and shoe heels each heel is generally made up of aseries of heel-lifts having edges more or less rough, and these edges are usually trimmed prior to the burnishing operation which imparts the tinished surface.

In this invention the heel. blank made of the assembled and united lifts (the edges of the lifts being but roughly trimmed) is placed and held between two jaws cr plates, and the edges ot' the blank are then subjected to the pressure of shaping-dies or dies having shaping-faces, these dies moving radially, and their conjoint faces compressing the edges ofthe blank, and bringing them all to a uniform or smooth surface extending around the curve ot the heel. ,iSeries of heel-holding plates is preferably formed around the periphery ot a rotating wheel, each holder being iilled as it approaches a vertical position, and the heel-blank when in a vertical position being subjected to the pressure ot' the dies, which are forced inward by the action of a suitable drop or other device for aetuatin g the dies, they being forced back by suitable springs when the drop or` plunger rises. The invention consists primarily in the method of shaping the heeledge by placing it between plates, and subjecting the edge to the radial pressure oi' sliding dies.

The drawing represents a machine embodying the invention.

Figure 1 shows a front and sectional eleva- Fig. 2 is a vertical central section.

a denotes a strong stand; b, housings for t-hev journals of ashat't, c. Upon this shaft is a wheel, d, having extending from its periphery a series of pairs of plates, e f, the inner surfaces of the two plates ot' each pair being parallel, except immediately adjacent to the periphery of one of them, and each plate e being of the size and shape of the tread or bot-- tom lift oi' the heel, while each platef is oi the size ofthe rand or split lift, each plate e being cha-mfered near its edge, as seen at g. The space h between the two plates of each pair is a heel-holding space, and the heel-blank when placed in the holder has edges extending beyond the two plates, which edges are to be so compressed and solidiiied as to give to its rough lift-proiecting surface a form and smoothness according with the shape and position of the plates, the displaced leather beingeondensed into the body of the heel and forced toward the ehamfer g, the chainfer forming the hollow or concavity in the heel-seat,

and enabling the heel to be finished and ap plied without a rand or split lift. Over the top of the wheel is a stationary die-holder, i, containing a series ot' radially-sliding dies, L', the inner face I of each ot which is of the shape to be given to a portion of the heel-edge, theudie-faces ofthe several dies meeting when the dies are pressed in, and forming the continuo'us shape to be imparted to the curved edge surface ot' the heel. These dies at their outer ends are shown as inclined, so as to be struck bythe inclines my of a drop or plunger,

n, which is raised and lowered by a link, o, and a crank-wheel, p, on a shaft, q, the dies being forced inward against the heel-edge at erich descent ci' the plunger, and being forced outward when the plunger rises by suitable springs V.

To position the blank with respect to the dies, and to bring each blank automatically into position by the movement ofthe plunger, the shaft c may be provided with a ratchet, s, with which engages a spring dragpawl, t, the pawl turning the wheel when the plunger rises and bringing the heel-blank into position with relation to the dies, and slipping over the ratchet-teeth without moving the wheel when the plunger descends.`

In placing a blank in the holder it may be retained in Iposition by a suit-able spring, u, until the blank comes into position for the ac tion ofthe dies.

By this method of edgcshaping the heel l obviate the necessity o t' trimming ott' the edges ofthe heellifts, and I obtain a very hard and enduring heel-edge.

I claim@ 1, In combination with blank-holdin g plates e f, sliding dies, substantially as shown and described, for compressing the edges of the lifts and shaping and forming the heel-edge.

2. In combination with the sliding and shaping dics,the Wheel having the -series of heelholdin gplates, arran ged substantially as shown and described.

3. The combination of the rotating wheel d having the blank-holding plates, the stationary die-holder t', and its sliding dies k, and the follower7 arranged and operating substantially as shown and described.

4. In combination with the wheel d and fol- 

